Which of the following compounds will form a cyclic ring as

Last updated: 7/11/2022

Which of the following compounds will form a cyclic ring as a major product on treatment of given compound with one equivalent of Mg in dry ether? BrCH₂CH₂Br BrCH₂CH₂CH₂Br BrCH₂CH=CHCH₂Br BrCH₂CH₂CH₂CH₂Br